irgacure 907 (cas 71868-10-5) powder

Packaging:20kg/carton box
Capacity:500 Tons per Month
Appearance:White powder
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Description Irgacure 907 Irgacure 907 Quick Details Chemical Name: 2-Methyl-4′-(methylthio)-2-morpholinopropiophenone Product name:Irgacure 907/photoinitiator 907 CAS No.:71868-10-5 MF: C15H21NO2S Molecular structure: Irgacure 907 Properties Item Specifications Appearance Whitepowder Assay ≥99% Melting Point 70-75℃ Loss On Drying ≤ 0.5% Transmittance 425nm ≥92.0% 500nm ≥96.0% Irgacure 907 Description Irgacure 907 is a highly efficient free radical (I) type solid photoinitiator used primarily with mono- or polyfunctional vinyl monomers and oligomers for unsaturated prepolymers (eg acrylates). UV curing, especially suitable for use in pigmented UV curing systems. Moreover, it has a high photoinitiator efficiency and absorbs wavelengths of 330 to 385 nm. It is often used in combination with a thioxanthone photoinitiator to enhance absorbance. Irgacure 907 Uses Irgacure 907 is a highly efficient UV photoinitiator used to initiate UV polymerization of unsaturated prepolymerization systems. Such as: acrylic resin and monofunctional and polyfunctional vinyl monomers. The initiator molecules have a certain light-absorbing ability in the ultraviolet region (250-400 nm) or the visible region (400-800 nm). After directly or indirectly absorbing the light energy, the initiator molecules transition from the ground state to the excited singlet state. Exciting to the triplet state; after the singlet or bimolecular chemistry of the excited singlet or triplet state, active fragments capable of initiating polymerization of the monomers, which may be free radicals, cations, anions, etc., are produced. According to different initiation mechanism, the photoinitiator can be divided into a radical polymerization photoinitiator and a cationic photoinitiator, wherein a radical polymerization photoinitiator is most widely used. Highly efficient photoinitiators are used in UV curing systems to provide long-term non-yellowing and extended storage. An initiator specially designed for pigment-based UV-curable coatings, inks, and adhesive colored curing systems. It can be used with initiators such as 184 and ITX. Can be used in pigmented ink systems, paper/metal and plastic varnishes and electronic inks. It can also be used as an ultraviolet absorber in industries such as cosmetics. The recommended addition amount is 2-6%. Can be used alone or in combination, such as mixed with 1173 thioxanthone. Used in inks, varnishes and other substrates such as paper, metal, plastic. High absorption rate, suitable for inks and colored coatings, especially suitable for image technology, such as offset printing ink, screen printing ink, printing plate making, etc.; electronic industry, such as lithography, etc., the amount should be determined by experiment. Unique high absorbency It is especially suitable for UV curable inks and photosensitizers. Mixtures of thioxanthone are commonly used in solder mask inks. Irgacure 907‘s unique high absorption properties make it particularly suitable for UV-curable inks and pigmented coatings. UV inks contain a large amount of photoinitiator, which is the photoinitiator that causes the ink to dry quickly during the printing process. These photoinitiators are not stable by themselves, and even in a dark environment, dark reactions are highly likely to occur, resulting in individual gelatinization nucleuses, followed by large-scale gelation, especially when metal inks are preserved. A similar situation. Therefore, it is recommended to store the ink pigment separately from the binder. When it is used, stir it with a large machine. The Irgacure 907 can absorb the ultraviolet radiation energy to form a radical or a cation during the curing process of the ink, initiate polymerization, crosslinking and grafting reaction of the monomer and the oligomer, and cure the ink in a short time. A high molecular polymer of a three-dimensional network structure. Safe use of Irgacure 907 Harmful if swallowed. Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Do not breathe dust. Avoid release to the environment. Refer to special instructions / safety data sheets. Recommended dosage Offset ink: 4-6% photoinitiator 907 Screen Ink: 2-4% Photoinitiator 907 0.2-0.5% photoinitiator 184 Varnish: 0.1-1% photoinitiator 907 2-5% photoinitiator 184 Photoetching agent: 3-6% photoinitiator 907 Irgacure 907 Packaging and Shipping Packing:20kg/carton box. Delivery:with in 5-7 working days. Irgacure 907 storage Stored in a cool dry place out of direct sunlight.
irgacure 907 , Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name:irgacure 907
CAS No.: 71868-10-5
Molecular Formula: C15H21NO2S
Molecular weight: 279.4
Sample: Available


Basic Info of Ambroxan

Chemical Name






Molecular Formula


Molecular Weight






Safety Info

Safety Statements


WGK Germany



UN 3077

Risk Statements

R22; R51/53

Hazard Codes



GHS07, GHS08, GHS09

Hazard Declaration

H302; H360; H411

Caution Statement

P201; P280; P301 + P312 + P330; P308 + P313

Signal Word



Appearance & Physical State

White to yellow powder


1.15 g/cm3

Boiling Point

420.1ºC at 760 mmHg

Melting Point


Flash Point


Refractive Index



Numbering system
MDL numberMFCD00083014
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What is 2-Methyl-4'-(methylthio)-2-morpholinopropiophenone ?

  • With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is  2-Methyl-4′-(methylthio)-2-morpholinopropiophenone which has developed particularly rapidly in recent years. Do you know about 2-Methyl-4′-(methylthio)-2-morpholinopropiophenon?
  • The official answer: UV photoinitiator 907 can be used in the ink curing process, absorbing UV radiation energy and forming radicals or cations, triggering monomer and oligomer polymerization, cross-linking, and grafting reactions, in a very short period of time to make the ink cured into a three-dimensional network structure of polymers.

What’s the application of Ambroxan?

  • Photoinitiator 907 is a highly efficient UV initiator for initiating UV polymerization reactions of unsaturated pre-polymerized systems. For example: acrylic resins and mono- and poly-functional vinyl monomers.
  • The initiator molecule has certain light absorption ability in the UV region (250~400nm) or visible region (400~800nm). After absorbing light energy directly or indirectly, the initiator molecule jumps from the ground state to the excited monocline state, and then to the excited trilinear state by inter-system scampering; after the excited monocline state or trilinear state undergoes single molecule or bimolecular chemistry, the active fragments that can initiate monomer polymerization are produced.
  • These active fragments can be free radicals, cations, anions, etc. According to the different initiation mechanisms, photoinitiators can be divided into free radical polymerization photoinitiators and cationic photoinitiators, of which the free radical polymerization photoinitiators are most widely used. Photoinitiator 907 unique high absorption characteristics make it particularly suitable for UV-curable inks and Chemicalbook colored coatings. UV inks contain a larger amount of photoinitiators, it is these photoinitiators in the printing process to promote the rapid drying of ink.
  • These photoinitiators themselves are not stable, even in the dark environment, it is very easy to dark reaction, produce a nucleus of ink gelation, followed by a large area of gelation phenomenon, especially when preserving the metal ink, more likely to occur in a similar situation.
  • Therefore, it is recommended to store the ink pigment and connecting material separately, and when it is to be used, it can be mixed by stirring with large machinery. Highly efficient photoinitiators are used in UV-curable systems for long-term non-yellowing and extended storage. Specially for UV-curable coatings, inks and adhesives containing pigments colored curing system of an initiator, can be used with 184, ITX and other initiators.
  • Can be used in colored ink systems, paper/metal and plastic varnishes and electronic inks. It can also be used as UV absorber in cosmetics and other industries. The recommended addition amount is 2-6%. Used as an initiator in light-curing materials. UV-curable coatings and inks.


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Keywords of 2-Methyl-4'-(methylthio)-2-morpholinopropiophenone

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